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OBERWEIS ASSET MANAGEMENT INC/ 13F 持仓明细(2026-03-31) · 小隐寺数据中心
OBERWEIS ASSET MANAGEMENT INC/
报告期 2026-03-31 · CIK 0000937886
持仓数
180
前50大市值合计
$2.09B
报告期
2026-03-31
当前持仓
调仓
组合演变
前 6 大持仓 + 其他 逐季市值($B) · 点图或下方季度看该季调仓
看某季调仓:
26Q1
25Q4
25Q3
25Q2
25Q1
24Q4
24Q3
24Q2
24Q1
23Q4
23Q3
23Q2
23Q1
22Q4
22Q3
22Q2
22Q1
21Q4
21Q3
26Q1 调仓
2025-12-31 → 2026-03-31 · 共 150 项
建仓 18
增持 99
减持 12
清仓 21
方向
标的
Δ市值
现股数(环比)
增持
AAOI
Applied Optoelectronics Inc.
+$127.7M
2,349,969
+15%
减持
LITE
Lumentum Hldgs, Inc.
+$83.5M
266,222
-5%
增持
DOCN
DigitalOcean Holdings, Inc.
+$42.1M
927,505
调仓由相邻两季 13F 持仓相减推导(非逐笔成交);方向按股数增减,Δ市值受股价波动影响、符号可与方向相反;13F 申报滞后最长 45 天。
+19%
增持
DAN
Dana Inc.
+$35.3M
1,611,500
+102%
减持
—
Ambarella, Inc.
-$28.6M
295,185
-52%
减持
FRSH
Freshworks, Inc.
-$24.7M
57,750
-97%
增持
FSLY
Fastly, Inc.
+$24.1M
1,071,022
+55%
增持
UCTT
Ultra Clean Holdings
+$23.9M
640,476
+2%
增持
—
Nova Ltd.
+$22.7M
137,955
+22%
建仓
DRS
Leonardo DRS, Inc.
+$20.0M
449,500
建仓
INDV
Indivior Plc
+$19.9M
653,413
清仓
CARG
CarGurus, Inc.
-$19.9M
0
-100%
建仓
CHYM
Chime Financial Inc.
+$19.4M
1,035,530
建仓
HNGE
Hinge Health, Inc.
+$18.0M
465,766
清仓
SXT
Sensient Technologies Corp.
-$17.7M
0
-100%
清仓
—
Genius Sports Ltd.
-$17.5M
0
-100%
增持
MTSI
Macom Technology Solutions
+$17.3M
215,886
+21%
建仓
NVST
Envista Holdings Corp.
+$16.9M
665,400
建仓
SHAK
Shake Shack, Inc.
+$16.6M
187,570
增持
ECG
Everus Construction Group
+$16.3M
326,533
+26%
清仓
ACIW
ACI Worldwide Inc.
-$15.8M
0
-100%
增持
BTSG
BrightSpring Health Services
+$15.4M
1,158,970
+28%
清仓
—
Indivior Plc
-$15.2M
0
-100%
增持
CLH
Clean Harbors, Inc.
+$14.0M
144,355
+24%
建仓
ARLO
Arlo Technologies, Inc.
+$14.0M
982,300
清仓
CVLT
Commvault Systems, Inc.
-$13.9M
0
-100%
增持
SEI
Solaris Energy Infrastructur
+$13.2M
531,889
+45%
建仓
MOG/A
Moog Inc. - A
+$13.1M
44,910
增持
CNR
Core Natural Resources, Inc.
+$12.5M
269,800
+51%
建仓
ATEN
A10 Networks, Inc.
+$11.7M
504,300
增持
LSCC
Lattice Semiconductor Corporat
+$11.6M
374,436
+19%
建仓
SBCF
Seacoast Bkg Corp.
+$11.5M
378,866
清仓
TPB
Turning PT Brands, Inc.
-$11.2M
0
-100%
增持
CRS
Carpenter Technology Corp.
+$11.2M
94,433
+14%
清仓
WK
Workiva, Inc.
-$11.0M
0
-100%
增持
FSS
Federal Signal Corp.
+$10.9M
267,634
+61%
增持
VIAV
Viavi Solutions, Inc.
+$10.7M
593,200
+17%
增持
—
Camtek, Ltd.
+$10.5M
222,780
+2%
增持
FCFS
FirstCash Holdings, Inc
+$10.2M
165,665
+26%
增持
GMED
Globus Medical, Inc.-A
+$10.2M
392,200
+45%
减持
EHC
Encompass Health Corporation
-$10.1M
289,485
-19%
建仓
AMPX
Amprius Technologies, Inc.
+$9.9M
585,000
增持
SIMO
Silicon Motion Techn ADR
+$9.8M
282,550
+20%
清仓
GDOT
Green Dot Corp. Cl A
-$9.8M
0
-100%
增持
WGS
Genedx Holdings Corp.
-$9.1M
261,370
+31%
增持
MTDR
Matador Resources Company
+$9.0M
312,700
+23%
减持
—
IBEX Ltd.
-$9.0M
10,200
-96%
增持
RELY
Remitly Global, Inc.
+$9.0M
1,454,300
+45%
增持
ABCB
Ameris Bancorp
+$8.9M
263,500
+68%
增持
ARQT
Arcutis Biotherapeutics, Inc.
+$8.7M
1,365,941
+69%
清仓
ATRC
Atricure, Inc.
-$8.6M
0
-100%
增持
LFUS
Littelfuse, Inc.
+$8.6M
71,800
+15%
清仓
—
Rev Group, Inc.
-$8.4M
0
-100%
清仓
BBW
Build A Bear
-$8.2M
0
-100%
增持
AGX
Argan, Inc
+$7.8M
33,322
+1%
增持
DIOD
Diodes, Inc.
+$7.8M
224,300
+48%
建仓
—
Thermon Group Hldgs Inc.
+$7.8M
154,700
增持
AEIS
Advanced Energy Industry, Inc.
+$7.6M
49,183
+24%
增持
PAHC
Phibro Animal Health Corp
+$7.5M
277,100
+32%
建仓
APEI
American Public Education, Inc
+$7.4M
130,400
增持
—
LivaNova Plc
+$7.4M
321,900
+52%
建仓
BW
Babcock & Wilcox Enterprises,
+$7.3M
500,200
清仓
FRME
First Merchants Corporation
-$7.3M
0
-100%
增持
LASR
nLIGHT Inc.
+$7.3M
363,010
+2%
减持
WEAV
Weave Communications, Inc.
-$7.2M
72,830
-93%
清仓
MBUU
Malibu Boats, Inc.
-$6.9M
0
-100%
增持
LMAT
LeMaitre Vascular, Inc.
+$6.8M
148,601
+28%
清仓
HWKN
Hawkins, Inc.
-$6.6M
0
-100%
增持
PI
Impinj, Inc.
-$6.5M
118,086
+10%
清仓
—
Pagaya Technologies Ltd.
-$6.4M
0
-100%
增持
HALO
Halozyme Therapeutics, Inc.
+$6.3M
219,930
+87%
增持
MGY
Magnolia Oil & Gas Corp.
+$6.1M
454,466
+21%
建仓
KN
Knowles Corp.
+$6.0M
234,200
增持
PEGA
Pegasystems Inc.
-$6.0M
455,290
+7%
清仓
AIOT
Powerfleet, Inc.
-$5.8M
0
-100%
增持
QTWO
Q2 Holdings, Inc.
-$5.6M
394,629
+17%
增持
CPRX
Catalyst Pharmaceuticals, Inc.
+$5.6M
780,570
+33%
建仓
CNXN
PC Connection, Inc.
+$5.6M
96,200
增持
BROS
Dutch Bros., Inc.
+$5.6M
598,493
+48%
增持
MMSI
Merit Medical System Inc
+$5.6M
424,209
+58%
增持
PUMP
ProPetro Holding Corp.
+$4.9M
965,500
+2%
减持
COCO
The Vita Coco Co., Inc.
-$4.9M
156,108
-33%
增持
ACA
Arcosa, Inc.
+$4.9M
267,700
+21%
建仓
BRCB
Black Rock Coffee Bar, Inc.
+$4.7M
365,600
增持
AMSC
American Superconductor
+$4.7M
849,900
+2%
增持
—
SharkNinja, Inc.
+$4.6M
599,970
+14%
建仓
RCKY
Rocky Brands, Inc.
+$4.6M
118,000
增持
TPC
Tutor Perini Corp.
+$4.5M
393,900
+2%
增持
—
Fabrinet
+$4.3M
30,263
+20%
减持
AIR
AAR Corp.
+$4.3M
245,125
-10%
增持
BLBD
Blue Bird Corporation
+$4.1M
389,238
+2%
增持
EZPW
EZCorp, Inc.
+$4.0M
639,400
+2%
增持
AEO
American Eagle Outfitters
-$4.0M
1,044,900
+28%
增持
PDS
Precision Drilling Corp.
+$3.9M
112,600
+13%
增持
QLYS
Qualys, Inc.
-$3.9M
118,900
+10%
增持
IDCC
Interdigital, Inc.
+$3.9M
42,645
+51%
增持
RSI
Rush Street Interactive, Inc.
+$3.8M
1,434,560
+2%
增持
NIC
Nicolet Bankshares, Inc.
+$3.6M
74,800
+21%
增持
SITM
SiTime Corporation
+$3.6M
119,281
+12%
增持
ETON
Eton Pharmaceuticals, Inc.
+$3.5M
439,300
+2%
增持
VCYT
Veracyte, Inc.
-$3.5M
839,834
+16%
增持
FLS
Flowserve Corporation
+$3.5M
434,681
+6%
增持
PRIM
Primoris Services Corp.
+$3.5M
166,100
+2%
增持
CALX
Calix, Inc.
+$3.5M
335,030
+37%
增持
ZWS
Zurn Elkay Water Solutions Cor
+$3.4M
352,183
+32%
减持
NYT
New York Times Co. Cl A
-$3.3M
211,650
-30%
增持
LOPE
Grand Canyon Education, Inc.
+$3.3M
116,900
+17%
清仓
LYTS
LSI Industries Inc.
-$3.2M
0
-100%
增持
LTH
Life Time Holdings, Inc.
+$3.1M
1,160,500
+10%
增持
MD
Pediatrix Medical Group, Inc.
+$3.0M
701,087
+25%
减持
POWL
Powell Industries Inc.
+$3.0M
34,157
-30%
增持
DCO
Ducommun Inc.
+$2.9M
99,900
+2%
增持
BHE
Benchmark Electronics Inc
+$2.8M
201,900
+2%
增持
IRTC
Irhythm Holdings, Inc.
-$2.8M
156,004
+30%
增持
RMBS
Rambus, Inc
+$2.8M
526,316
+14%
增持
FTDR
Frontdoor, Inc.
+$2.7M
717,960
+18%
增持
LQDA
Liquidia Corp.
+$2.7M
372,100
+13%
清仓
MTRX
Matrix Service Co.
-$2.7M
0
-100%
增持
MGNI
Magnite, Inc.
-$2.6M
647,600
+2%
清仓
BLZE
Backblaze, Inc.
-$2.6M
0
-100%
增持
VISN
Vistance Networks, Inc.
+$2.5M
1,092,012
+14%
增持
—
Kiniksa Pharmaceuticals, Ltd.
+$2.4M
318,634
+2%
增持
OSIS
Osi Systems, Inc.
+$2.4M
106,593
+5%
增持
EVLV
Evolv Technologies Holdings
+$2.4M
1,671,949
+55%
增持
SKYW
Skywest Inc
-$2.3M
392,499
+3%
增持
ICUI
ICU Medical, Inc.
+$2.3M
203,710
+21%
增持
AIZ
Assurant, Inc.
+$2.3M
102,300
+23%
增持
ALHC
Alighnment Healthcare, Inc.
+$2.3M
966,600
+29%
增持
RDVT
Red Violet, Inc.
-$2.2M
104,700
+2%
减持
IMAX
Imax Corp.
-$2.2M
577,139
-12%
增持
SKWD
Skyward Specialty Ins Group
+$2.1M
327,100
+38%
增持
LIND
Lindblad Expeditions Holdings,
+$2.1M
378,721
+23%
增持
ANIP
ANI Pharmaceuticals, Inc.
+$2.1M
221,386
+17%
清仓
SHOP
Shopify, Inc.
-$2.1M
0
-100%
增持
—
Expro Group Holdings N.V.
+$2.0M
454,600
+2%
增持
AORT
Artivion, Inc
-$1.8M
221,122
+2%
增持
—
Genpact Ltd.
-$1.8M
606,832
+16%
增持
HURN
Huron Consulting Group, Inc.
-$1.8M
42,300
+2%
增持
ZETA
Zeta Global Holdings Corp.
-$1.7M
871,060
+14%
减持
MRCY
Mercury Systems, Inc.
-$1.7M
391,023
-6%
增持
URBN
Urban Outfitters, Inc.
-$1.6M
314,792
+10%
增持
GRC
The Gorman-Rupp Co.
+$1.5M
95,000
+2%
增持
NPKI
NPK International, Inc.
+$1.4M
518,150
+2%
增持
DAVE
Dave, Inc.
-$1.4M
66,702
+13%
增持
SPXC
SPX Technologies, Inc.
+$1.3M
83,441
+9%
增持
CRAI
CRA Int'l Inc.
-$1.3M
36,470
+2%
增持
BOX
Box, Inc.
-$1.3M
771,520
+18%
增持
—
OneSpaWorld Holdings Limited
+$1.3M
485,690
+2%
增持
—
Credo Technology Group
-$1.2M
1,021,968
+51%
增持
—
Super Group SGHC Ltd.
+$1.2M
1,514,400
+19%
